Had the chance to head to Sonoma for the 2nd race of the 2014 Lake Sonoma Series. This is a very fun but tough event. The riding there consists of single-track and fire roads. The single-track is a blast but tricky, rocky in places, with loose gravel, and thick dry grass. Oh, and the climbs are short steep and punchy. The promoters put together a great deal with the race and a BBQ and drinks afterwards. Always a fun crowd of all categories mixing it up.
Watch the video I cobbled together from this race if you don't believe me ;)
More info here: bikemonkey.net/events/lakesonoma/